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dt-binding: remoteproc: Introduce Qualcomm WCNSS loader binding
The document defines the binding for a component that loads firmware for and boots the Qualcomm WCNSS core. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Documentation/devicetree/bindings/remoteproc/qcom,wcnss-pil.txt
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Qualcomm WCNSS Peripheral Image Loader | ||
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This document defines the binding for a component that loads and boots firmware | ||
on the Qualcomm WCNSS core. | ||
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- compatible: | ||
Usage: required | ||
Value type: <string> | ||
Definition: must be one of: | ||
"qcom,riva-pil", | ||
"qcom,pronto-v1-pil", | ||
"qcom,pronto-v2-pil" | ||
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- reg: | ||
Usage: required | ||
Value type: <prop-encoded-array> | ||
Definition: must specify the base address and size of the CCU, DXE and | ||
PMU register blocks | ||
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- reg-names: | ||
Usage: required | ||
Value type: <stringlist> | ||
Definition: must be "ccu", "dxe", "pmu" | ||
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- interrupts-extended: | ||
Usage: required | ||
Value type: <prop-encoded-array> | ||
Definition: must list the watchdog and fatal IRQs and may specify the | ||
ready, handover and stop-ack IRQs | ||
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- interrupt-names: | ||
Usage: required | ||
Value type: <stringlist> | ||
Definition: should be "wdog", "fatal", optionally followed by "ready", | ||
"handover", "stop-ack" | ||
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- vddmx-supply: | ||
- vddcx-supply: | ||
- vddpx-supply: | ||
Usage: required | ||
Value type: <phandle> | ||
Definition: reference to the regulators to be held on behalf of the | ||
booting of the WCNSS core | ||
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- qcom,smem-states: | ||
Usage: optional | ||
Value type: <prop-encoded-array> | ||
Definition: reference to the SMEM state used to indicate to WCNSS that | ||
it should shut down | ||
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- qcom,smem-state-names: | ||
Usage: optional | ||
Value type: <stringlist> | ||
Definition: should be "stop" | ||
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- memory-region: | ||
Usage: required | ||
Value type: <prop-encoded-array> | ||
Definition: reference to reserved-memory node for the remote processor | ||
see ../reserved-memory/reserved-memory.txt | ||
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= SUBNODES | ||
A single subnode of the WCNSS PIL describes the attached rf module and its | ||
resource dependencies. | ||
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- compatible: | ||
Usage: required | ||
Value type: <string> | ||
Definition: must be one of: | ||
"qcom,wcn3620", | ||
"qcom,wcn3660", | ||
"qcom,wcn3680" | ||
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- clocks: | ||
Usage: required | ||
Value type: <prop-encoded-array> | ||
Definition: should specify the xo clock and optionally the rf clock | ||
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- clock-names: | ||
Usage: required | ||
Value type: <stringlist> | ||
Definition: should be "xo", optionally followed by "rf" | ||
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- vddxo-supply: | ||
- vddrfa-supply: | ||
- vddpa-supply: | ||
- vdddig-supply: | ||
Usage: required | ||
Value type: <phandle> | ||
Definition: reference to the regulators to be held on behalf of the | ||
booting of the WCNSS core | ||
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= EXAMPLE | ||
The following example describes the resources needed to boot control the WCNSS, | ||
with attached WCN3680, as it is commonly found on MSM8974 boards. | ||
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pronto@fb204000 { | ||
compatible = "qcom,pronto-v2-pil"; | ||
reg = <0xfb204000 0x2000>, <0xfb202000 0x1000>, <0xfb21b000 0x3000>; | ||
reg-names = "ccu", "dxe", "pmu"; | ||
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interrupts-extended = <&intc 0 149 1>, | ||
<&wcnss_smp2p_slave 0 0>, | ||
<&wcnss_smp2p_slave 1 0>, | ||
<&wcnss_smp2p_slave 2 0>, | ||
<&wcnss_smp2p_slave 3 0>; | ||
interrupt-names = "wdog", "fatal", "ready", "handover", "stop-ack"; | ||
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vddmx-supply = <&pm8841_s1>; | ||
vddcx-supply = <&pm8841_s2>; | ||
vddpx-supply = <&pm8941_s3>; | ||
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qcom,smem-states = <&wcnss_smp2p_out 0>; | ||
qcom,smem-state-names = "stop"; | ||
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memory-region = <&wcnss_region>; | ||
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pinctrl-names = "default"; | ||
pinctrl-0 = <&wcnss_pin_a>; | ||
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iris { | ||
compatible = "qcom,wcn3680"; | ||
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clocks = <&rpmcc RPM_CXO_CLK_SRC>, <&rpmcc RPM_CXO_A2>; | ||
clock-names = "xo", "rf"; | ||
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vddxo-supply = <&pm8941_l6>; | ||
vddrfa-supply = <&pm8941_l11>; | ||
vddpa-supply = <&pm8941_l19>; | ||
vdddig-supply = <&pm8941_s3>; | ||
}; | ||
}; |